From the home page:
GSI is an easy to use audio system which can be used over a network
and which gives applications, through a very simple API, sample
playing with stereo, 3D, doppler effects, music playing (MIDI, HMP,
MUS), cd playing and ejecting/changing.
GSI also contains a separately usable sound/music
loading/saving/format conversion library libgsif
(au/aiff/voc/wav/raw, midi/hmp/mus), although saving/format
conversion is not completely done.
GSI runs on any unix system that has generic /dev/audio (8000Hz mono
mulaw), OSS, ultrasound project drivers, or NAS (well, it did once, I
need to update the NAS stuff), e.g. Linux, OpenBSD and FreeBSD. CD
playing is dependent on the OS' ioctl's and structs so that probably
works on linux/*BSD only (Solaris may work, as it seems to use the
same ioctl's/structs as Linux).
License: 2-clause BSD-style for code / public domain for headers
WWW: http://gsi.sourceforge.net/

Add GSI. GSI is an easy to use audio system which can be used over a network
and which gives applications, through a very simple API, sample playing with
stereo, 3D, doppler effects, music playing (MIDI, HMP, MUS), cd playing and
ejecting/changing.